S31803 Pipe tube manufacturer supplier. Contact us to get free quote and sample!
S31803 duplex stainless steel pipe has become the core material in many industrial fields due to its high yield strength (about twice that of austenitic stainless steel), excellent resistance to chloride stress corrosion (PREN value 32-33) and good weldability. HT PIPE is a S31803 Pipe supplier with 15+ export experience. Contact us for more information and quotes for free!
stainless steel s31803 pipe in Energy and Oil and Gas Industry
Offshore oil and gas platforms: used for seawater injection systems, fire hoses, process pipelines and submarine pipelines, resisting high salt spray and chloride corrosion.
Oil and gas pipelines: In wet natural gas environments containing hydrogen sulfide (H₂S), carbon dioxide (CO₂) and chlorides, its ability to resist stress corrosion cracking (SCC) is significantly better than 316L stainless steel, ensuring long-distance transportation safety.
Key units of refineries: process pipelines used in catalytic cracking, hydroprocessing and other units, resistant to sulfide and acidic medium corrosion.
ss31803 tube in Chemical and heavy industry
Fertilizer industry: used for urea synthesis towers, phosphoric acid pipelines in phosphate fertilizer production, resistant to high temperature acid corrosion.
Pulp and paper: high-concentration chlorine/chlorine dioxide environment pipelines in the bleaching section to avoid pitting and crevice corrosion.
Chemical industry pipelines: transport mixed acids (such as acetic acid, formic acid), organic solvents and chlorine-containing solutions, with corrosion resistance between 316L and 6% molybdenum austenitic stainless steel, and outstanding cost performance.
s31803 steel pipe in Marine engineering and environmental protection
Seawater desalination system: used for high-pressure reverse osmosis (RO) membrane shell water inlet pipes and concentrated brine discharge pipes to resist high-salinity seawater erosion.
Ships and offshore equipment: ballast water systems, seawater cooling pipelines, to avoid chloride stress corrosion cracking.
Flue gas desulfurization (FGD): absorption tower inlet flue, slurry circulation pipelines, withstand wear and corrosion of low-temperature dilute sulfuric acid and solid particles.
super stainless steel 2205 pipe in Food industries
Food and pharmaceutical equipment: meet hygiene standards, used for fermentation tanks, clean fluid delivery systems, resistant to weak acids and chloride cleaning agents.
S31803 Pipe in New energy infrastructure
Geothermal energy: transport high-temperature geothermal fluids containing minerals.
Hydrogen energy storage and transportation: explore the use of high-pressure hydrogen pipelines, taking advantage of its high strength and hydrogen embrittlement resistance potential (need to be combined with component optimization).
High-stress structural parts: bridge cables and offshore platform supports, which use their high yield strength (≥450 MPa) to achieve lightweight design.
